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TITLE:
Comparació de dos mètodes analítics per a la determinació de xantofil·les totals - TFG:298
Handle: https://hdl.handle.net/20.500.11797/TFG298

Student:Ferré Mateu, Aleix
Language:cat
Title in original language:Comparació de dos mètodes analítics per a la determinació de xantofil·les totals
Title in different languages:Comparation of two analytical methods for the determination of total xanthophylls
Keywords:Xanthophylls, carotenoids, analytical methods
Subject:Química
Abstract:ABSTRACT In the present study we have compared two analytical methods for the determination of total xanthophylls. We have performed a detailed analysis of changes in the composition and quantity of carotenes and xanthophylls a sample. The extracted pigments were separated and identified by spectrophotomety and chromatography. The identified compounds were β-carotene, trans-lutein, zeaxanthin and lutein isòmers cis. The most abundant compounds were lutein (91%) and zeaxanthin (5%). Pigment stability in the extract with respect to temperature, illumination (light and darkness) and antioxidant addition was evaluated (BHT). The statistical results show that the determination of total xanthophylls for both methods are not significant different for a value of α = 0.05 . However, for total carotenoids results were not comparables.
Project director:Castillón Miranda, Sergio
Department:Química Analítica i Química Orgànica
Education area(s):Química
Entity:Universitat Rovira i Virgili (URV)
TFG credits:12
Creation date in repository:2015-10-15
Work's public defense date:2015-06-08
Academic year:2014-2015
Confidenciality:No
Subject areas:Chemistry
Access rights:info:eu-repo/semantics/openAccess
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